package edu.xcdq;

public class Demo01 {
    public static void main(String[] args) {
        for (int i = 0 ;i<3;i++){
            for (int  j= 0 ;j<4;j++){
                System.out.print("i="+i+"j="+j+"\t");
            }
            System.out.println();
        }
    }
}
